/*
Copyright 2021-2022 Alin M Elena <alinm.elena@gmail.com>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include QMK_KEYBOARD_H

enum layer_names {
    _QW = 0,
    _LWR,
    _RSE,
    _ADJ
};

#define LOWER TT(_LWR)
#define RAISE TT(_RSE)

#ifdef RGBLIGHT_ENABLE

const rgblight_segment_t PROGMEM my_qwerty_layer[] = RGBLIGHT_LAYER_SEGMENTS({0, RGBLIGHT_LED_COUNT, HSV_PURPLE});
const rgblight_segment_t PROGMEM my_lwr_layer[]    = RGBLIGHT_LAYER_SEGMENTS({0, RGBLIGHT_LED_COUNT, HSV_CYAN});
const rgblight_segment_t PROGMEM my_rse_layer[]    = RGBLIGHT_LAYER_SEGMENTS({0, RGBLIGHT_LED_COUNT, HSV_RED});
const rgblight_segment_t PROGMEM my_adj_layer[]    = RGBLIGHT_LAYER_SEGMENTS({0, RGBLIGHT_LED_COUNT, HSV_GREEN});

const rgblight_segment_t* const PROGMEM my_rgb_layers[] = RGBLIGHT_LAYERS_LIST(my_qwerty_layer, my_lwr_layer, my_rse_layer, my_adj_layer);
#endif

// clang-format off
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
[_QW] = LAYOUT_ortho_5x12(

    KC_GRV , KC_1   , KC_2   , KC_3  , KC_4 , KC_5  , KC_6  , KC_7 , KC_8   , KC_9   , KC_0   , KC_BSPC,
    KC_ESC , KC_Q   , KC_W   , KC_E  , KC_R , KC_T  , KC_Y  , KC_U , KC_I   , KC_O   , KC_P   , KC_DEL ,
    KC_TAB , KC_A   , KC_S   , KC_D  , KC_F , KC_G  , KC_H  , KC_J , KC_K   , KC_L   , KC_SCLN, KC_QUOT,
    KC_LSFT, KC_Z   , KC_X   , KC_C  , KC_V , KC_B  , KC_N  , KC_M , KC_COMM, KC_DOT , KC_SLSH, KC_ENT ,
    KC_LCTL, KC_LGUI, KC_LALT, KC_APP, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP  , KC_RGHT

    ),

[_LWR] = LAYOUT_ortho_5x12(

    KC_TILD, KC_EXLM, KC_AT  , KC_HASH, KC_DLR , KC_PERC, KC_CIRC, KC_AMPR   , KC_ASTR   , KC_LPRN, KC_RPRN, KC_DEL ,
    KC_DEL , KC_F1  , KC_F2  , KC_F3  , KC_F4  , KC_F5  , KC_F6  , KC_UNDS   , KC_PLUS   , KC_LCBR, KC_RCBR, KC_PIPE,
    _______, KC_F7  , KC_F8  , KC_F9  , KC_F10 , KC_F11 , KC_F12 , S(KC_NUHS), S(KC_NUBS), _______, _______, _______,
    _______, _______, _______, _______, _______, _______, _______, _______   , KC_MNXT   , KC_VOLD, KC_VOLU, KC_MPLY,
    _______, _______, _______, _______, _______, _______, _______, _______   , _______   , _______, _______, _______

 ),

[_RSE] = LAYOUT_ortho_5x12(

    KC_GRV , KC_1   , KC_2   , KC_3   , KC_4   , KC_5   , KC_6   , KC_7   , KC_8   , KC_9   , KC_0   , KC_DEL ,
    KC_DEL , KC_F1  , KC_F2  , KC_F3  , KC_F4  , KC_F5  , KC_F6  , KC_MINS, KC_EQL , KC_LBRC, KC_RBRC, KC_BSLS,
    _______, KC_F7  , KC_F8  , KC_F9  , KC_F10 , KC_F11 , KC_F12 , KC_NUHS, KC_NUBS, _______, _______, _______,
    _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY,
    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______

    ),

[_ADJ] =  LAYOUT_ortho_5x12(

    _______, QK_BOOT, _______, _______, _______, _______, UG_TOGG, UG_NEXT, UG_PREV,  RGB_M_G, QK_BOOT, _______,
    _______, _______, _______, _______, _______, _______, UG_HUEU, UG_SATU, UG_VALU , _______, _______, _______,
    _______, _______, _______, _______, _______, _______, UG_HUED, UG_SATD, UG_VALD , _______, _______, _______,
    _______, _______, _______, _______, _______, _______, _______, _______, _______ , _______, _______, _______,
    _______, _______, _______, _______, _______, _______, _______, _______, _______ , _______, _______, _______

    )

};
// clang-format on

// let us assume we start with both layers off
bool toggle_lwr = false;
bool toggle_rse = false;

bool led_update_user(led_t led_state) {
    // Disable the default LED update code, so that lock LEDs could be reused to show layer status.
    return false;
}

void matrix_scan_user(void) {
    led_lwr(toggle_lwr);
    led_rse(toggle_rse);
    led_t led_state = host_keyboard_led_state();
    led_caps(led_state.caps_lock);
    if (layer_state_is(_ADJ)) {
        led_lwr(true);
        led_rse(true);
    }
}

void matrix_slave_scan_user(void) {
    matrix_scan_user();
    if (IS_LAYER_ON(_LWR)) {
        led_lwr(layer_state_is(_LWR));
    }
    if (IS_LAYER_ON(_RSE)) {
        led_rse(layer_state_is(_RSE));
    }
}

bool process_record_user(uint16_t keycode, keyrecord_t* record) {
    switch (keycode) {
        case (TT(_LWR)):
            if (!record->event.pressed && record->tap.count == TAPPING_TOGGLE) {
                // This runs before the TT() handler toggles the layer state, so the current layer state is the opposite of the final one after toggle.
                toggle_lwr = !layer_state_is(_LWR);
            }
            return true;
            break;
        case (TT(_RSE)):
            if (record->event.pressed && record->tap.count == TAPPING_TOGGLE) {
                toggle_rse = !layer_state_is(_RSE);
            }
            return true;
            break;
        default:
            return true;
    }
}

layer_state_t layer_state_set_user(layer_state_t state) {
#ifdef RGBLIGHT_ENABLE

    rgblight_set_layer_state(0, layer_state_cmp(state, _QW));
    rgblight_set_layer_state(1, layer_state_cmp(state, _LWR));
    rgblight_set_layer_state(2, layer_state_cmp(state, _RSE));
    rgblight_set_layer_state(3, layer_state_cmp(state, _ADJ));

#endif
    return update_tri_layer_state(state, _LWR, _RSE, _ADJ);
}

#ifdef RGBLIGHT_ENABLE

layer_state_t default_layer_state_set_user(layer_state_t state) {
    rgblight_set_layer_state(0, layer_state_cmp(state, _QW));
    return state;
}

void keyboard_post_init_user(void) {
    // Enable the LED layers
    rgblight_layers = my_rgb_layers;
}
#endif

#ifdef ENCODER_ENABLE

#    define MEDIA_KEY_DELAY 10

static inline void my_encoders(const uint8_t index, const bool clockwise) {
    if (index == 0 || (index == 1)) { /* First encoder on each side*/
        if (IS_LAYER_ON(_LWR)) {
            if (clockwise) {
                rgblight_decrease_val_noeeprom();
            } else {
                rgblight_increase_val_noeeprom();
            }
        } else if (IS_LAYER_ON(_RSE)) {
            if (clockwise) {
                rgblight_decrease_hue_noeeprom();
            } else {
                rgblight_increase_hue_noeeprom();
            }

        } else {
            if (clockwise) {
                tap_code_delay(KC_VOLD, MEDIA_KEY_DELAY);
            } else {
                tap_code_delay(KC_VOLU, MEDIA_KEY_DELAY);
            }
        }
    }
}

bool encoder_update_user(uint8_t index, bool clockwise) {
    my_encoders(index, clockwise);
    return true;
}
#endif
